SuStel:
Whether or not -pu' is used doesn't depend on the meaning of the adverbial, but on the meaning of the sentence. If you're describing specific instances of actions, use -pu'. If you're describing habits or tendencies without specific instances, don't use -pu'. ghunchu'wI': The perfective doesn't come from the adverbial.
I'm happy to read your comments, SuStel and ghunchu'wI', because as it seems I was still seriously misunderstanding everything regarding aspect. I was under the impression that the way to approach aspect was "In case of adverb A use {-pu'}, in case of adverb B don't use {-pu'}", which was obviously wrong. Anyway, I think I understand now, but before moving on, I'd like to ask the following in order to be thorough. SuStel:
During the previous summer, I often ate pizza. (You're describing specific instances of pizza-eating, so this is perfective.) During the previous summer, I would often eat pizza. (You're describing a tendency to eat pizza. That would is the key to recognizing the imperfective nature of the idea.)
If I understand this correctly, then I could write: During the previous summer, I never/always ate pizza. (I'm describing specific instances of (not) pizza-eating, so this is perfective) During the previous summer, I would never/always eat pizza. (I'm describing a tendency to (not) eat pizza, so this is imperfective) Would you agree with the above? ghunchu'wI':
Incidentally, none of your Klingon sentences imply "in the past".
Yes, you're right. While I was writing the initial post I thought of placing a time-stamp implying "in the past", but I omitted it for simplicity reasons. -- Dana'an https://sacredtextsinklingon.wordpress.com/ Ζεὺς ἦν, Ζεὺς ἐστίν, Ζεὺς ἔσσεται· ὦ μεγάλε Ζεῦ